Ameliorating Precast Concrete Curbs Using Rubber and Nano Material

Komaki, Mohammad Ebrahim; Dolatshamloo, Amirreza Ghodrati; Eslami, Mahdi; Heydari, Sahar

doi:10.28991/cej-2017-00000077

Cited by 3 publications

(3 citation statements)

References 20 publications

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“…Since the flexural properties of concrete are important for kerbs, especially when constructed on reactive soils, rubberized concrete can be a potential solution in such scenarios. Some researchers already used TDA in kerb application and found it desirable, e.g., Komaki et al [89], Munikanan et al [90] and Johari et al [91].…”

Section: Recycled Concretementioning

confidence: 99%

“…It is to be noted that for different kerb materials (concrete, stone and polymer), even for the same property, the testing procedure applicable may be different; for example, a testing method applicable for concrete may not be particularly applicable to polymer or stone, and caution should be exercised while interpreting values and comparison presented in Table 4. Recycled Concrete Slightly lower than NC [75] Flexural strength slightly lower than NC [75] Slightly less than NC [94] Lower than NC [95] Less than NC [96] Slightly higher than NC [75] Slightly lower than NC [75] Rubberized Concrete Lower than NC [97] Higher deflection tolerance than NC [85] Higher than NC [81] Higher than NC [89] Improved than NC [89] Lower than NC [89] Slightly lower than NC [97] Sandstone 25-100 [ Recycled Plastic -Higher deflection tolerance than NC [3] Higher than NC…”

Section: Stonementioning

confidence: 99%

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A Review of Current Design and Construction Practice for Road Kerbs and a Sustainability Analysis

et al. 2022

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Kerb is an integral part of road infrastructure and performs several important functions, including providing stability to the edges of the road and providing effective drainage. Their performance can significantly influence the behaviour and service life of a road. The design conditions, construction materials and their sustainability can be important to assess from an asset management and sustainable construction point of view even though this area has been paid limited research attention in the past. This paper reviews the available literature on the design and construction considerations for kerbs and critically analyses them with a special focus on sustainable construction practice. The different materials commonly used around the world for the construction of kerb in terms of their properties, failure and available design guidelines have been discussed along with their management practice. Special situations, such as expansive soil movement and tree root-related problems, have also been considered, and the current guidelines for designing in such situations have also been discussed. A carbon footprint and sustainability analysis has been conducted on the current practice of using natural aggregate concrete and compared against several potential alternatives. The review of the design process indicated that the current practice relies on over-simplified design procedures and identified scopes for improvement, especially with the incorporation of mechanical behaviour of the material being used in construction. The carbon footprint and sustainability analysis indicated that the use of alternative materials could result in significant savings in the kerb construction industry’s carbon footprint.

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Section: Recycled Concretementioning

confidence: 99%

Section: Stonementioning

confidence: 99%

A Review of Current Design and Construction Practice for Road Kerbs and a Sustainability Analysis

et al. 2022

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“…e comparative study on the flexural behavior of rubberized reinforced concrete beams conducted by Alasmari et al revealed an ameliorated performance with the use of the hybrid beams [19]. e effect of using waste tire rubber and nanomaterial in the construction of concrete curbs has been studied by Komaki et al e results showed a positive effect on durability and abrasion resistance [20]. In this research study, hybrid silicone rubber concrete (HSRC) properties using mechanical tests on the different percent of liquid silicone rubber to the total mineral aggregate's volume in concrete at different ages are investigated.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Mechanical Properties of Concrete Containing Liquid Silicone Rubber Under Axial Loads

Khaloo

Darabad

2021

Shock and Vibration

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As the experts who have taken for granted the merits of utilizing the concrete as the most common material in the structural industry, there is a need to take affirmative steps to enhance the concrete’s weaknesses such as the low ductility and energy absorption capacity. One possible way to improve the mechanical properties of concrete is to add liquid silicone rubber to the concrete. Silicone rubber is an elastomer (rubber-like material) composed of liquid rubber polymer and its hardener which is widely used in voltage line insulators, automotive applications, and medical devices. In order to increase the ductility and energy absorption of concrete, the liquid silicone rubber replaced a portion of mineral aggregates in concrete. HSRC (hybrid silicone rubber concrete) is a mixture of liquid silicone rubber with fresh concrete that liquid silicone rubber after 24 hours becomes a flexible solid rubber with low strength. In this paper, liquid silicone rubber was used to replace 0%, 2%, 4%, 8%, 12.5%, 25%, and 50% of the total mineral aggregate’s volume in concrete. Standard specimens were fabricated and tested. The fresh HSRC exhibited acceptable workability and lower unit weight compared to ordinary plain concrete. The uniaxial compressive strain-control test was conducted on the hardened HSRC specimens to obtain the complete stress-strain curve. The results showed that, with the increase of liquid silicone rubber in concrete, the amount of compressive strength, splitting tensile stress, and elastic modulus decreased. It was also observed that the percentage of reduction in compressive strength was greater than the percentage of reduction in tensile strength. Increasing silicone rubber concentration in HSRC changes the brittle mode of failure to ductile that demonstrated using nonlinearity indices. Unlike plain concrete, the failure state in HSRC occurs gently and uniformly and does not cause so much separation in the specimens. Larger deformation and higher toughness indices were obtained, when the silicone rubber concentration was increased.

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Structural performance of fibre reinforced recycled aggregate concrete road kerb sections under monotonic and cyclic loading

Momotaz,

Rahman,

Karim

et al. 2024

Construction and Building Materials

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Ameliorating Precast Concrete Curbs Using Rubber and Nano Material

Cited by 3 publications

References 20 publications

A Review of Current Design and Construction Practice for Road Kerbs and a Sustainability Analysis

A Review of Current Design and Construction Practice for Road Kerbs and a Sustainability Analysis

Investigation of Mechanical Properties of Concrete Containing Liquid Silicone Rubber Under Axial Loads

Structural performance of fibre reinforced recycled aggregate concrete road kerb sections under monotonic and cyclic loading

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